Yet the actual structure needs improvement.The ripple effect for example is too basic and is a mere transparency effect.The explosion itself ended up looking like a letter 'T' and an abrupt ending.It should have expired not suddenly disappeared.
Unless it would have been too long i dont know but at least better structure.

Well not bad I'd say for what you had going. I mean honestly though it needed more too it. I see this honestly as nothing more then a scene in a movie and to be honest it would make a great final scene in a movie if you did it just right.

Couldn't hear the audio which can't tell if that's a fault on your part or mind so I won't count off for that. Other then that not bad... a mushroom cloud would of been neat to see as well and since you animated the nuclear bomb you should have made your own background scenery also.

So overall I gave it a 5/10 and gave a vote of 3
Has potential just need to add a little more